I need some proxys for school
On average most additions cost about $1000 each. You could get a better product and a better deal from a radio shop. Or you could have them eat the price of the alarm in the sale if you have not bought the car yet. That would come in negotiations but you still end up with less of a product and resentful installation.
A couple things come to mind. A dirty detector especially if it uses and optical sensor I had one that looked clean but there was apparently a spider that made a home in it at one time and the web kept blowing into the sensor. The alarms only last about 5 years so maybe it's hitting it's senior years. Unless you wear some kind of cologne it doesn't like I am tapped out on ideas. LOL Depending on they type of alarm if you have to replace it keep in mind that it has to be disposed of specially as most have some amount of radioactive material in them.
yes a mandatory two foot rule applies to all smoke detectors I hope i helped
